# Sandbox.WaterVolume.FluidDensity

```csharp
float FluidDensity { get; set; }
```

How heavy the fluid is. Higher values make things float more.
Water is 1000, oil is around 900, something very heavy like mercury is 13600.

Declared in [Sandbox.WaterVolume](/api/Sandbox.WaterVolume).
Assembly: `Sandbox.Engine`.